Modular housing for a hybrid module

ABSTRACT

The invention relates to a hybrid module including a clutch, an electric machine, an internal combustion engine end, a transmission end, and a housing that includes a radially extending housing section located axially next to the electric machine at the internal combustion engine end as well as an axially extending housing section surrounding at least part of the hybrid module; the housing has two separate parts, the first one of which forms the radially extending housing section and the second one of which forms the axially extending housing section. The invention further relates to a method for manufacturing a hybrid module of this type.

BACKGROUND

The invention relates to a hybrid module for hybrid driven machines,particularly vehicles with a hybrid drive, which include a combinationof an electric motor and an internal combustion engine.

The valuable contribution to prior art under application number DE 102013 224 109.7 shows an example of such a hybrid module. It comprises ahybrid module housing in which an intermediate wall is embodied betweenthe vibration damper and the electric machine, integral with thehousing.

The inventors have defined the objective to further improve the notedprior art. In particular, the assembly expense shall be reduced and thecompatibility of the hybrid module shall be increased.

SUMMARY

This objective is particularly attained in a hybrid module with aclutch, an electric machine, an internal combustion engine end, and atransmission end, with the hybrid module comprising a housing with aradially extending housing section, which is arranged at the internalcombustion engine end axially next to the electric machine, and with anaxially extending housing section which surrounds the hybrid module atleast partially, and with the housing comprising two separatecomponents, with the first part forming the radially extending housingsection and the second part forming the axially extending housingsection.

This objective is further attained particularly in a method for theproduction of a hybrid module with a clutch, an electric machine, aninternal combustion engine end, a transmission end, and a housing, inwhich the following step is performed:

Connecting a first part to a second part, with a radially extendinghousing section forming the first part, which in the assembled state ofthe hybrid module is arranged at the internal combustion engine endaxially next to the electric machine, and with an axially extendinghousing section forming the second part, which in the assembled state ofthe hybrid module at least partially surrounds the hybrid module.

A modular design of the housing is yielded by the separate embodiment ofthe two parts, which leads to a higher degree of flexibility for theproduction and application. Interfaces with other abutting parts, forexample engine or transmission, can be defined in a more flexiblefashion. For example, independent from the exterior diameter of theelectric machine, here an interface can be ensured for the transmissionitself via a flange projecting inwardly, because by the assembly of theelectric machine and the cooling channel from the internal combustionengine end possible due to the modular design, the flange contour of thehousing can be pulled radially inwardly at the transmission end of thehybrid module, providing sufficient material for a threaded connectionto the transmission. Now, a selection can be made between varioussequences for the assembly of the components of the hybrid module,cables can be released more easily, and the housing can even be providedat the face side with an opening having a smaller diameter or a flangeprojecting radially inwardly such that the compatibility to varioussizes of transmission bells is increased, particularly to those withsmaller exterior diameters than the exterior diameter of the housing ofthe hybrid module. For example, a separate first part, serving e.g. asan intermediate wall, provides advantages with regards to the wiring ofthe rotor position sensor. This way it is possible for example thatduring the assembly preferably the cable is already placed at theintermediate wall on the E-machine side or laid in the intermediate walland fastened there. This way, any passing of the sensor cable throughthe intermediate wall, as presently common, is no longer required. Thisis advantageous for the rigidity and sealing of the wall. This firstpart can here also have another axial section radially surrounding thevibration damper. By this construction then the cables can also beguided axially in the direction towards the engine out of the housing ofthe hybrid module.

In the following the use of the terms radially and axially refers to theaxis of the rotor of the hybrid module.

The electric machine preferably comprises a rotor in which the clutch isintegrated. The hybrid module housing is preferably embodied without anintegral intermediate wall for connecting the clutch system to therotor.

The radially extending housing section is preferably a wall sectionwhich extends between a radially exterior point to a radially interiorpoint and with its radial extension being greater than the axialextension. A radial extension is here also understood as an essentiallyradial extension, i.e. in the extreme case for example that the anglebetween the axis and the radial housing section is greater than 45°.Axially arranged next to the electric machine is understood here suchthat coming from the internal combustion engine end in the axialdirection first the radially extending housing section is arranged andthen the electric machine. Preferably the first part forming theradially extending housing section comprises an opening for passing ashaft through it (e.g. rotor shaft or driveshaft or shaft between theclutch and the vibration damper). Particularly preferred the openingcomprises a bearing, e.g., a single-row or multi-row roller bearing,which supports the shaft rotationally in reference to the housingsection. It is preferred that the first part is a sealing dividing wallbetween a housing chamber in which the electric machine operates with aclutch, preferably a wet one, and an exterior chamber or a space inwhich a vibration damper is arranged. The first part, preferablyembodied as an intermediate wall, is preferably made from steel (e.g.,steel sheeting, cast part) or aluminum (e.g., die casting).

Preferably the clutch comprises an actuating device, which is indirectlyor preferably directly supported by the first part. The actuating deviceis an electronic central shifter, for example. The support of theactuating device occurs preferably via a support device; it isparticularly preferred if the support device of the actuating device isan integral component of the first part. For example, a support deviceof an electronic central shifter and the radially extending housingsection are embodied by the first part for example as a radiallyextending housing section embodied as an intermediate wall (e.g. as acast part).

The axially extending housing section is preferably a wall section whichextends between two points axially distanced from each other and withits radial extension being smaller than the axial extension. Here, anaxial extension is also understood as an essentially axial extension,i.e. in the extreme case that the angle between the axis and the radialhousing section is smaller than 45°, for example. The axially extendinghousing section surrounds the hybrid module, preferably the electricmachine and/or a vibration damper, at least partially, i.e. it exhibitspartially an annular cross-section and/or surrounds once the rotoraxis/drive axis, for example. Preferably it surrounds the hybrid moduleessentially like a cylinder barrel jacket, particularly completely. Itis preferred for the second part, which forms the axially extendinghousing section, to represent a sealing separating wall between ahousing chamber in which the electric machine runs with a clutch,preferably a wet one, and an exterior space.

In the method according to the invention the two parts are connected toeach other, with this way an indirect, preferably a direct connectionbeing encased. The connection preferably represents a threadedconnection.

In another hybrid module according to the invention the second partcomprises a flange at the transmission end for connecting a transmissionbell, with the flange defining a contour which shows at least onecontour section (preferably several contour sections) which is/arelocated radially inside the exterior diameter of the axially extendinghousing section.

By the combination of such an inwardly projecting flange with themodular design of the housing now simultaneously a simple assembly ispossible with higher compatibility of the hybrid module to differentlysized transmission bells. Therefore, depending on the technicalspecifications, it may be possible that the flange area of thetransmission bell and thus the pitch circle for the threaded connectioncan be designed with smaller dimensions than the exterior contour of thehousing of the hybrid module. In this case the threaded connection ofthe hybrid module according to prior art to the transmission isimpossible, because no material is available inside the housing; here itcannot be provided e.g., in the form of a flange because otherwise thecomponents of the hybrid module, such as cooling channel, but perhapsalso the stator, rotor, or clutch, cannot be inserted any longer intothe housing with the here reduced opening at the transmission side.However, in the hybrid module according to the invention the assembly ofthe parts, or at least the cooling channel and/or the stator, occurscoming from the side of the internal combustion engine, which ispossible because no integral intermediate wall blocks the path.

Preferably the flange has fastening points in the contour sectionslocated radially inwardly. A fastening point is preferably a point inwhich a force-fitting and/or form-fitting and/or material-to-materialconnection of the second part occurs or shall occur to the transmission.This represents for example a bore hole and/or a thread and/or a grooveor an oblong hole. Preferably the flange contour is pulled radiallyinwardly towards the transmission, depending on the flange situation ofthe transmission bell.

It is preferred that at least one contour section is located radiallyinside the interior diameter of the axially extending housing section.

Preferably the axially extending housing section surrounds the electricmachine (not the vibration damper) when a flange is provided.

Preferably at least one contour section is located radially inside theexterior or interior diameter of a cooling channel. This way atransmission bell with a slightly smaller diameter can also beassembled, while still allowing (depending on the concrete geometry) thestator, rotor, and clutch to be assembled coming from the transmissionside.

It is preferred that at least one contour section is located radiallyinside the exterior or interior diameter of the stator. This way atransmission bell can be assembled with an even smaller diameter, whilestill allowing (depending on the concrete geometry) the rotor and theclutch to be assembled coming from the transmission side.

Preferably at least one contour section is located radially inside theexterior or interior diameter of the rotor. This way a transmission bellwith a very small diameter can be assembled, with here still allowing(depending on the concrete geometry) that the clutch is assembled comingfrom the transmission side.

It is preferred that at least one contour section is located radiallyinside the exterior or interior diameter of the clutch. This way atransmission bell can be assembled with a very, very small diameter.

In another hybrid module according to the invention the hybrid modulecomprises a vibration damper, and the first part is arranged as anintermediate wall axially between the vibration damper on the one sideand the electric machine and/or the clutch on the other side.

This way a very compact design can be chosen. Preferably theintermediate wall seals the housing chamber, which surrounds theelectric machine and/or the clutch, and the housing chamber, in whichthe vibration damper is located, in reference to each other. The secondpart preferably forms a housing chamber for the vibration damper and ahousing chamber for the electric machine.

The vibration damper is preferably a torsional vibration absorber.

In another hybrid module according to the invention the first part ispreferably connected indirectly, particularly preferred directly to thesecond part and/or a cooling channel and/or a stator of the electricmachine.

It is preferred for the parts to be connected to each other in atorque-proof fashion.

In another hybrid module according to the invention the first partand/or the second part has a recess for guiding or passing through asensor and/or control cable and/or an electric contact for supplying theelectric machine and/or an actuating device of the clutch with electricenergy.

This allows for a flexible and secure wiring or contacting. It ispreferred that the recess is provided at an edge of the part, i.e. herethe recess is not completely surrounded by the material of the part.This way it is not required to guide the wire or the contacting througha hole, and thus it is not necessary to disassemble any potentiallygiven plugs, or simply an easier assembly is possible.

In another hybrid module according to the invention the housing has twohousing halves, with one housing half comprising the first part and theother housing half comprising the second part.

This allows a quick assembly by combining the two housing halves. It isnot mandatory that one housing half represents half of the volume orweight of the entire housing. Preferably here a housing half isunderstood that upon combining two housing halves the housing iscompleted, preferably essentially completed. It is preferred that theindividual housings are each pre-assembled and then connected to eachother. It is preferred that one or both housing halves represent aone-piece part.

The housing comprises here e.g. a transmission end housing part as thesecond housing half, in which preferably a cooling channel and thestator of the E-machine are integrated. The fastening of the coolingchannel occurs preferably, as described above, via a threadedconnection. It is preferred for the housing part at the transmission endto have openings for the threaded connections to the transmission bell.

It is preferred that as the first housing half an intermediate wall isintegrated in a housing part at the motor side by a second part, atwhich preferably the clutch system is fastened. The first housing halfpreferably encompasses the vibration damper radially outside in theaxial direction and preferably it includes e.g., guides for the rotorposition sensor at the transmission side.

Both housing halves are preferably screwed together during the finalassembly. Preferably a seal is provided between the housing halves.Preferably one or both housing halves include(s) recesses receiving acable or an electric contacting. Thus, any penetration in theintermediate wall is not required for the cable of the rotor positionsensor (the cable is fastened at the side of the electric machine)because it can be guided via the connection site of the two housinghalves towards the outside. Additionally, an electric contacting canoccur between the housing parts to supply the electric machine withelectric drive energy, with the contacts preferably being coated inplastic. Preferably the cooling channel can be screwed to the secondpart or the second housing half. The threaded connection of the coolingchannel in the housing can occur without requiring additional structuralspace between the housing parts.

In another hybrid module according to the invention the recess isprovided in an area in which the two components contact each other orthe recess is provided in an area in which the two housing halves arecontacting each other.

This way a cable grommet or a contact grommet is easily possible, e.g.,by assembling the halves or parts to each other. Preferably the recessis provided at the edge of the part, i.e. the recess is not completelysurrounded by the material of the part, which yields the above-statedadvantage.

In another method according to the invention, prior to connecting thefirst part and the second part, the following steps are performed:

Inserting one or more, preferably all of the following components of thehybrid module into the second part, preferably coming from the side ofthe internal combustion engine: cooling channel, stator;

Connecting an inserted component or at least one of several insertedcomponents to the second part.

This way, particularly such components can be assembled which have agreater exterior dimension than a flange pulled inwardly. For example,the cooling channel is screwed separately into the hybrid module.Subsequently the intermediate wall is screw-connected in the housing,forming the first part, which housing is formed by the second part.Preferably the cooling channel and the intermediate wall are eachcentered in the housing. Alternatively a centering of the coolingchannel can also occur in the housing and/or a centering of theintermediate wall at the cooling channel and/or vice versa.

In another method according to the invention, prior to connecting thefirst part to the second part, the following steps are performed:

Forming a pre-mounting assembly by preferably connecting the first partto one or more of the following components of the hybrid module, unlessthey have already been connected to the second part: cooling channel,stator, rotor, rotor position sensor, clutch, actuating device of theclutch;

Inserting the pre-mounting assembly into the second part, preferablycoming from the side of the internal combustion engine.

This way, the assembly steps can be combined such that it is notrequired to insert the components individually into the housing to theextent assembled at said time. Additionally, a connection of thecomponents to each other can be performed more easily when they arestill outside the housing. For example, the intermediate wall and thecooling channel can be screwed together, bolted, riveted, or welded in apre-assembly step. Subsequently the threaded connection is generated ofthe pre-mounted assembly in the housing. This represents an alternativeto the above-mentioned sequence, in which first the cooling channel isinserted into the housing and screw-connected there. Alternatively oradditionally the clutch and/or the clutch module are pre-assembled atthe first part and/or here the intermediate wall for example. Forexample, the clutch system with the actuator device and the rotor arepre-assembled at the first part or the first housing half, which allowsan easy fastening of the control cable or sensor cable for the actuatordevice, because the respective points are better accessible. Furtherpreferred, the clutch and the cooling channel including the stator arepre-assembled at the first part and/or the intermediate wall and theyare fastened as an assembly in the housing, which can be advantageouswith regards to the assembly of the hybrid module.

In another method according to the invention, after the connection ofthe first part and the second part, the following steps are performed:

Inserting preferably one or more of the following components of thehybrid module into the second part, unless they have already beenconnected to the first part or the second part, and preferably comingfrom the internal combustion engine side or the transmission side:cooling channel, stator, rotor, rotor position sensor, clutch;

Connecting the first inserted component or at least one of severalinserted components to the first part and/or the second part.

This way, even such components can be fastened in the hybrid modulewhich still can be installed in an easy fashion or can only be installedwhen the first part has already been connected to the second part. Forexample the rotor can be inserted coming from the transmission sideafter the intermediate wall has been installed. Here, the rotor has anexterior diameter which is smaller than the interior diameter of thecontour or the interior circumference of the flange at the transmissionside. For example the intermediate wall is assembled in the housing asdescribed above (as a part of an assembly or individually). Then similarto prior art the clutch module is assembled in the module as known fromprior art at the acme of rotor and stator.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is now illustrated based on the example shown in thefigures. Shown here are:

FIG. 1 a hybrid module according to the invention,

FIG. 2 a hybrid module according to the invention based on FIG. 1, withthe hybrid module additionally comprising a vibration damper,

FIG. 3 a hybrid module according to the invention similar to FIGS. 1 and2, with the module comprising a housing with two housing halves,

FIG. 4 a hybrid module according to the invention similar to FIG. 3,with a housing half at the transmission end representing the radiallyextending housing section,

FIGS. 5A to 5C a hybrid module according to the invention based on FIG.2, with the hybrid module comprising an intermediate wall as a firstpart,

FIGS. 6A to 6C a hybrid module according to the invention, based on FIG.3,

FIGS. 7A to 7D the housing half of the module of FIGS. 6A-6C at the sideof the internal combustion engine in various views and assembly states,and

FIGS. 8A to 8D a housing half of the module of FIGS. 6A-6C at thetransmission end in various views and assembly states.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 shows a hybrid module 1 according to the invention. It includes aclutch 20, preferably comprising an actuator device, an electric machine40, which here has a stator 41 and a rotor 42, an internal combustionengine end 2, and a transmission end 3, with in this example a shaft 5being provided at the transmission end and a shaft 4 at the internalcombustion engine end. It also has a housing 10 with a radiallyextending housing section 110, which is arranged at the internalcombustion engine end axially next to the electric machine 40, and withan axially extending housing section 120 at least partially surroundingthe hybrid module 1. The housing 10 comprises additionally two separateparts 11, 12, with the first part 11 forming the radially extendinghousing section 110 and the second part 12 forming the axially extendinghousing section 120. An optional flange 13 is indicated in dot-dashlines, which comprises the second part 12 at the transmission end forconnecting to a transmission bell, with the flange 13 defining a contourwhich shows at least one contour section located radially inside theexterior diameter of the stator 41.

The production of the hybrid module 1 includes connecting the first part11 to the second part 12.

This allows a more flexible axial insertion of the electric machine 40and/or the clutch 20 from the left (internal combustion engine side) orthe right (transmission side) and wiring can also be performed in aneasier fashion. Various flange sizes of transmission bells, even thosesmaller than the hybrid module 1, can be connected to the hybrid module1 via the optional flange 13, which then is not hindering such assemblybecause said assembly can be performed in a very flexible fashion.

FIG. 2 shows a hybrid module 1 according to the invention, based on FIG.1, with the hybrid module 1 additionally having a vibration damper 30.The first part 11 is axially arranged as an intermediate wall betweenthe vibration damper 30 on the one side and the electric machine 40 andthe clutch 20 on the other side. The clutch 20 comprises an actuatingdevice 21, which rests on the first part 11. The second part 12 alsoforms a housing chamber for the vibration damper 30.

This way a compact design develops.

FIG. 3 shows a hybrid module 1 according to the invention similar toFIGS. 1 and 2, with the module comprising a housing 10 with two housinghalves 10.1, 10.2. The housing half 10.1 at the internal combustionengine end comprises the first part 11 and the housing half 10.2 at thetransmission end comprises the second part 12. The first part 11comprises here an additional radial section by which it radiallysurrounds the vibration damper 30. Optionally the transmission endhousing half 10.2 has a flange 13 at the transmission end for a threadedconnection of the transmission to the housing half 10.2 as well asfurther a flange 13′ at the internal combustion engine end for athreaded connection of the housing half 10.2 to the housing half 10.1.Optionally the housing half 10.1 at the internal combustion engine endcomprises a flange 13″ at the internal combustion engine end for athreaded connection to the internal combustion engine. Preferably asensor cable 44, indicated in dot-dash lines, is guided at the radiallyextending housing section 110 radially outwardly between the housinghalves 10.1, 10.2, with here no penetration being required in the radialhousing section. Preferably a cooling channel 50 is arranged radiallyoutside the stator 41 and inside the second housing half 10.2.

This way a simple assembly option is given. In particular, theindividual housings are each preferably preassembled and then connectedto each other. Transmissions with various pitch diameters can bescrew-connected thereto with here only one housing half 10.2 beingappropriately adapted.

FIG. 4 shows a hybrid module 1 according to the invention similar toFIG. 3, with the housing half 10.2 at the transmission end comprisingthe radially extending housing section 110, formed by the first part 11.The housing half 10.1 at the internal combustion engine end comprisesthe axially extending housing section 120, formed by the part 12. Thisway the connection at the internal combustion engine end can be flexiblyadjusted in its diameter because the assembly of the electric machine 40occurs preferably coming from the transmission end 3.

FIGS. 5A to 5C show a hybrid module 1 according to the invention, basedon FIG. 2, with the hybrid module 1 comprising an intermediate wall as afirst part 11, which forms the radially extending housing section 110.FIG. 5B shows a detail of a cross-section at different angular positionthan in FIG. 5A; FIG. 5C shows a view of the hybrid module from theinternal combustion engine end 2. The second part 12 forms the axiallyextending housing section 120, which forms a chamber at the transmissionend for the electric machine 40 and a chamber at the internal combustionengine end for the vibration damper 30, which has not been preassembledhere. The clutch 20 is integrated in the rotor 42 and has as anactuating device 21 an electronic central shifter, which rests via asupport device 22 at the intermediate wall. The stator 41 surrounds acooling channel 50. The intermediate wall is screw-connected with itsradially exterior end section at the cooling channel 50 and preferablyat the second part 12. For this purpose the intermediate wall preferablycomprises links 15 as well, which are discernible in FIG. 5C, so thatscrews can also be connected radially outside the cooling channel 50 inthe material of the second part 12. Preferably the intermediate wall isscrew-connected in a sealing fashion, e.g., via a rubber gasket, andseals the chamber for the vibration damper 30 from the chamber for theelectric machine 40. A sensor cable 44 of a rotor position sensor islaid on the side of the intermediate wall facing the transmission end.3. It is preferably guided through an opening of the second part 12radially towards the outside. A control cable 44′ for the electroniccentral shifter 21 is guided out of the support device 22 to the side ofthe intermediate area facing the internal combustion engine end 2 and isfixed along it. A flange 13 is formed inwardly at the end of the secondpart 12 at the transmission end, with the contour 13.1 formed by theflange 13 being at least sectionally being located inside the exteriordiameter of the stator.

For assembling it, the cooling channel 50 is inserted and fastened inthe second part 12 coming from the internal combustion engine end 2.Here, preferably at least the stator 41 has been previously connected tothe cooling channel 50 to form an assembly. The assembly of the rotor 42and the clutch 20 occurs then from the transmission end 3 or from theinternal combustion engine end 2; the contour 13.1 of the flange 13allows both options. Alternatively, the rotor 42 and the clutch 20 havealso been connected already to the cooling channel 50 and the stator 41,and the assembly then occurs coming from the internal combustion engineside 2. Here it is advantageous that the wiring may have already beenfastened at the intermediate wall. Subsequently the intermediate wall,coming from the internal combustion engine end 2, is inserted into thepart 12 and here screw-connected to the cooling channel 50 and thesecond part 12.

This allows various options for the assembly.

FIG. 6A to 6C shows in various illustrations a hybrid module 1 accordingto the invention, based on FIG. 3. Unlike FIG. 3, the flange 13 ispulled outwardly, not inwardly. Additionally, the hybrid module 1 has acooling channel 50. The housing halves 10.1 and 10.2 are each embodiedin one piece. The transmission end housing half 10.2 has at the internalcombustion engine end a flange 13′ for the connection to the housinghalf 10.1 at the internal combustion engine end, which in turn has atthe internal combustion engine end a flange 13″ for connecting to theinternal combustion engine. The two housing halves 10.1 and 10.2 arescrew-connected to each other via the flange 13′. An electric contacting45 is located between the housing halves 10.1 and 10.2 in a recess 14.When assembling occurs as shown in FIG. 6C, the support device 22 andthe actuating device 21 are already connected to the housing half 10.1at the internal combustion engine end forming an assembly.

A modular, flexible assembly is possible by the two housing halves.Additionally, only one housing half needs to be altered respectively toadjust the interface to the internal combustion engine or to thetransmission, while the other one can remain unchanged.

FIGS. 7A-7D show the housing half 10.1 at the internal combustion engineend of the module 1 of FIGS. 6A-6C in various illustrations and statesof assembly. FIGS. 7A, 7C and 7D show the side facing the transmissionend 3, FIG. 7B the side of the housing side 10.1 facing the internalcombustion engine end 2, which forms a concave chamber for the vibrationdamper. The side facing the transmission end 3 comprises a recess 14 forthe electric contacting for transmitting the electric drive energy,e.g., for a plastic-coated bus-bar for example, as well as a recess 14′for laying a rotor position sensor cable 44 of the rotor position sensor43. This way any penetration through the radially extending housingsection 110 is not required. In FIG. 7C the first part 11, the supportdevice 22, the electronic central shifter 21, and a roller bearing 23resting on the central shifter 21, are pre-mounted to form an assembly.In FIG. 7D this assembly comprises then additionally the rotor positionsensor 43. Preferably the cable 44 for the rotor position sensor 14 islaid in the recess 14 and the corresponding plug is mounted. As soon asthe clutch is also pre-mounted, the assembly is combined with the otherhousing half 10.2.

FIGS. 8A-8D show the transmission end housing half 10.2 of the module ofFIG. 6A-6C in various views and states of assembly. FIGS. 8A, 8C, and 8Dshow the side facing the side 2 of the internal combustion engine, atwhich also a recess 14 is provided for electric contacting 45, which isdirectly opposite the recess 14 of the housing part 10.2 at the internalcombustion engine end in the assembled state, FIG. 8B shows the side ofthe housing half 10.2 facing the transmission end 3. In FIG. 8C thecooling channel 50 and the stator 41 are inserted in the part 12 andpreferably fastened there. The cooling channel 50 is preferably guidedby one or more cooling channel flanges, which engage appropriaterecesses of the part 12, and/or via them screw-connected thereto. Theplastic-coated electric contacting 45 here inserts itself into therecess 14.

These two housing halves 10.1 and 10.2, adjusted to each other in a veryadvantageous fashion, considerably facilitate the assembly. Inparticular, the wiring expense is reduced.

This invention presents a hybrid module with a modular housing as wellas a method for the assembly thereof. Here, the housing has two separateparts, with one of them forming an axially extending housing section andthe other one a radially extending housing section, e.g., as anintermediate wall. The application with a separate part as a radiallyextending housing section offers the advantage like a model kit thatsuch a part can perhaps be used for various types of hybrid modules.Only an adjustment of the housing occurs based on the structural spaceprovided by the customer. This may yield cost benefits. Furthermore, thesequence of the assembly is subject to fewer restrictions. Inparticular, the invention also refers to a hybrid module with anintermediate wall separated from the hybrid module housing forming thefirst part. Furthermore, a splitting of the housing in to two separateindividual housing halves offers advantages. The invention isparticularly used for hybrid applications, in which a hybrid module,comprising a damper system, a separating clutch, and an E-motor, isarranged axially between an internal combustion engine and atransmission.

LIST OF REFERENCE CHARACTERS

-   1 hybrid module-   2 internal combustion engine end-   3 transmission end-   4 shaft at the internal combustion engine end-   5 shaft at the transmission end-   10 housing-   10.1 housing half at the internal combustion engine end-   10.2 housing half at the transmission end-   11 first part-   12 second part-   13 flange-   13.1 contour formed by the flange-   14 recess-   15 link-   20 clutch-   21 actuator device-   22 support device-   23 bearing-   30 vibration damper-   40 electric machine-   41 stator-   42 rotor-   43 rotor position sensor-   44 sensor cable and/or control cable-   45 electric contacting-   50 cooling channel-   51 cooling channel flange-   110 radially extending housing section-   120 axially extending housing section

1. A hybrid module comprising a clutch, an electric machine, an internal combustion engine end, and a transmission end, with the hybrid module comprising a housing with a radially extending housing section, which is arranged at the internal combustion engine end axially next to the electric machine, and with an axially extending housing section that at least partially surrounds the hybrid module, the housing comprises first and second separate parts, with the first part forming the radially extending housing section and the second part forming the axially extending housing section.
 2. The hybrid module according to claim 1, wherein the second part at the transmission end comprises a flange for connection of a transmission bell, which defines a contour that has at least one contour section, which is located radially inside an exterior diameter of the axially extending housing section.
 3. The hybrid module according to claim 1, wherein the hybrid module further comprises a vibration damper and with the first part forming an intermediate wall arranged axially between the vibration damper on one side and at least one of the electric machine or the clutch on the other side and radially encompassing the vibration damper.
 4. The hybrid module according to claim 1, wherein the first part is connected to at least one of the second part, a cooling channel, or a stator of the electric machine.
 5. The hybrid module according to claim 1, wherein at least one of the first part or the second part comprises a recess for guiding or passing through at least one of a sensor cable, a control cable, or an electric contacting to supply electric energy to at least one of the electric machine or an actuator device of the clutch.
 6. The hybrid module according to claim 5, wherein the housing comprises two housing halves, and one of the housing halves comprises the first part and the other one of the housing halves comprises the second part.
 7. The hybrid module according to claim 6, wherein the recess is provided in an area in which the two parts are contacting each other or the recess is in an area in which the two housing halves are in contact to each other.
 8. A method for producing a hybrid module with a clutch, an electric machine, an internal combustion engine end, a transmission end, and a housing, the method comprising: connecting a first part to a second part, with the first part forming a radially extending housing section, which is arranged in an assembled state of the hybrid module at the internal combustion engine end axially next to the electric machine, and the second part forming an axially extending housing section that at least partially surrounds the hybrid module in the assembled state of the hybrid module.
 9. The method according to claim 8, further comprising prior to connecting the first part and the second part: inserting one or more of the following components of the hybrid module into the second part: cooling channel, stator; and connecting the component inserted or at least one of several components inserted to the second part.
 10. The method according to claim 8, further comprising prior to connecting the first part and the second part: forming a pre-mounted assembly by connecting the first part to one or more of the following components of the hybrid module: cooling channel, stator, rotor, rotor position sensor, clutch, actuator device of the clutch; and inserting the pre-mounted assembly into the second part.
 11. The method according to claim 8, further comprising after the connection of the first part and the second part: inserting one or more of the following components of the hybrid module into the second part: cooling channel, stator, rotor, rotor position sensor, clutch; and connecting an inserted component or at least one of several inserted components to at least one of the first part or the second part. 